Several users have reported that various USB devices (including digital cameras, hard drives, the PlayStation Portable [PSP] and others) are not recognized by Windows 7. In some cases, devices show a “Please Wait” message, but never interact properly with the computer. In other cases, hard drives appear as empty when they actually contain data, or other functionality is missing.
There are a number of potential fixes for this issue:
Switch USB ports A surprisingly effective fix is to simply switch the USB port to which your device is attached. For instance, if your computer has both front and back USB ports, try switching from the front to the back or vice versa. Otherwise, just connect the device to a different port from the one to which it is currently attached.
Disconnect and reconnect Although this fix is almost too obvious to mention, many users overlook it. Simply disconnect the USB device for a few seconds, then reconnect it, ensuring a secure, snug fit.
Uninstall third-party USB programs Go to the Control Panel and select “Add/Remove Programs.” Remove all third-party device drivers in the device manager, then restart your computer. Try reconnecting the problematic devices and check for resolution of the issue. If you need to re-add any third-party drivers, you can obtain them from the manufacturers’ websites.
Update drivers Make sure you have the latest drivers for each device. These can usually be obtained from the manufacturer website. As mentioned in the previous fix, you may want to try deleting all currently installed drivers before installing the fresh, new versions.
Delete the INFCACHE If you are running Windows Vista, you may want to try deleting the INFCACHE.1 file, which stores device-to-driver association information. To do this, open a Windows Explorer window and type c:\windows\inf then press return, and locate the file “INFCACHE.1,” then follow these steps:
- Right-click on INFCACHE.1 and select “Properties”
- Click on the “Security” tab, then click “Edit.”
- Click “Add,” then type the name you would like to give to the user group.
- Set the new group to “Full Control” then click OK.
- You can now delete the file INFCACHE.1
You should now restart your computer and check for proper operation of the device. You may need to re-download the device(s) driver from the manufacturer website.
Filed under Windows 7 by on Oct 16th, 2009. 2 Comments. 
Several users are experiencing an issue in which Windows 7 will not install, delivering the error message
“Load Driver A required CD/DVD drive device driver is missing. If you have a driver floppy disk, CD, DVD, or USB flash drive, please insert it now. Note: If the Windows installation media is in the CD/DVD drive, you can safely remove it for this step.”
This problem generally occurs right after pressing the “Install Now” button.
Fixes
Change BIOS boot order The most successful fix for this issue is to set the optical (DVD) drive as the first boot device in the BIOS. To do this, first enter BIOS mode as follows:
Enter your system’s BIOS mode. This is accomplished by pressing a specific key repeatedly as soon as your computer is turned on (or right after it is restarted). For many computers, the key is F8, but it may be F1, F2, F10, the Delete (del) key or the Escape (ESC) key. Consult your computer or motherboard’s manual or try different keys until you find the right one.
Find the screen or option for changing the boot order. Follow the instructions for changing the boot order. This is sometimes accomplished by using the + or – buttons.
Update ITE ATA driver Failing the above, try booting back into Windows Vista or XP. Launch Windows Update and install the ITE ATA driver update before attempting the upgrade. The upgrade advisor may not find this driver.
Switch from SATA to AHCI Follow the aforementioned instructions for booting into your computer’s BIOS, then check your HDD or storage settings. Turn off SATA, switching to AHCI, and reboot normally, then re-attempt installation of Windows 7.
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For other installation problem fixes, see our previous post “The 7 Biggest Windows 7 RC1 Problems (and Fixes)”
Filed under Windows 7 by on Aug 27th, 2009. 27 Comments.
A number of users have experienced an issue in which various USB devices do not work properly or at all after systems that have been upgraded to Windows Vista SP2 wake up from sleep or hibernation. In some cases, USB devices do not respond for 30 seconds or more after the system has awoken; in other cases, functionality is missing or the devices do not respond at all.
Potential fixes
While many users still experience these issues after applying this fix, Microsoft has released a downloadable hotfix that may resolve the problem in some cases.
You may also want to try deleting the INFCACHE file then restarting. Instructions for this process are as follows:
Filed under Windows Vista by on Jun 15th, 2009. 1 Comment.
Update: A new fix for this issue has been discovered. Try removing third-party items from the system tray, then restarting. One user found that removing the OpenOffice 3.1 Quickstarter from the system tray resolved the issue.
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Some users are unable to put their systems to sleep after updating to Windows Vista SP2, despite proper power management settings. There are a number of potential fixes for this issue.
Check media settings Sharing of certain files, specifically media files, can sometimes prevent proper sleep.
First, in Windows Media Player, check for options to share (in Tools > Options > Library). Eliminate these, then re-try sleep.
In the Network and Sharing Center, click ‘media sharing’ and turn off any options listed there.
Also, in power options, navigate to advanced settings, then check the settings in ‘multimedia settings.’
Update your drivers Check manufacturers’ websites for the latest driver editions for any third-party devices that are connected to your system. Many manufacturers have updated their drivers for basic compatibility with Vista SP2.
Graphics card drivers are notorious for causing sleep issues, so run Windows Update or check the manufacturer’s Web site for any of these updates.
Disconnect external (USB, etc.) devices Aside from your keyboard, mouse, monitor and network connectivity, try disconnecting any external USB, FireWire or other peripherals then re-trying sleep. You can reconnect the devices one by one and check for compatibility issues.
Filed under Windows Vista by on Jun 5th, 2009. 1 Comment.
Several users have experienced an issue in which Windows XP fails to properly boot when external disks (either USB or FireWire) are attached. Generally, when this problem occurs, the system will hang at the Windows splash screen, forcing a restart. Disconnecting the drive(s) resolves the issue.
Fixes
Disable the 1394 Network Adapter If you are experiencing this issue with a drive that is connected via FireWire, try disabling the 1394 Network Adapter. This can be accomplished by going to the control panel, then selecting network connections. Right-click on the 1394 connection and select “Disable.”
Lower offending drive’s boot priority Enter your system’s BIOS mode. This is accomplished by pressing a specific key repeatedly as soon as your computer is turned on (or right after it is restarted). For many computers, the key is F8, but it may be F1, F2, F10, the Delete (del) key or the Escape (ESC) key. Consult your computer or motherboard’s manual or try different keys until you find the right one.
Next, find the boot priority (or boot sequence) screen–generally located in “storage” or a similar section–and lower the priority of the external drive that is causing the problem.
Switch connections If your computer has both USB and FireWire ports, and your drive support both USB and FireWire, try switching from one connection method to the other.
Apply Microsoft’s hotfix Microsoft supplies a hotfix for this issue as it affects FireWire drives, though not all users have experienced success.
Filed under Windows XP by on Apr 21st, 2009. Comment.
You may encounter the error message “USB Device Not Recognized” when connecting external devices to your system. There are a number of causes for this issue, and an equal number of fixes. If you receive this error message, try the following procedures one-by-one (the easiest and most common fixes are listed first) until you find a fix.
Disconnect and reconnect Although this fix is almost too obvious to mention, many users overlook it. Simply disconnect the USB device for a few seconds, then reconnect it, ensuring a secure, snug fit.
Uninstall third-party USB programs Go to the Control Panel and select “Add/Remove Programs.” Remove all third-party device drivers in the device manager, then restart your computer. Try reconnecting the problematic devices and check for resolution of the issue. If you need to re-add any third-party drivers, you can obtain them from the manufacturers’ websites.
Update drivers Make sure you have the latest drivers for each device. These can usually be obtained from the manufacturer website. As mentioned in the previous fix, you may want to try deleting all currently installed drivers before installing the fresh, new versions.
Delete the INFCACHE If you are running Windows Vista, you may want to try deleting the INFCACHE.1 file, which stores device-to-driver association information. To do this, open a Windows Explorer window and type c:\windows\inf then press return, and locate the file “INFCACHE.1,” then follow these steps:
- Right-click on INFCACHE.1 and select “Properties”
- Click on the “Security” tab, then click “Edit.”
- Click “Add,” then type the name you would like to give to the user group.
- Set the new group to “Full Control” then click OK.
- You can now delete the file INFCACHE.1
You should now restart your computer and check for proper operation of the device. You may need to re-download the device(s) driver from the manufacturer website.
Did any of these fixes work for you? Do you know of another fix? Let us know.
Filed under Windows 7, Windows Vista, Windows XP by on Mar 25th, 2009. 1 Comment.